ECB-203 SeriesBACnet B-ASC 14-Point Programmable Controllers

OverviewThe ECB-203 Series controllers aremicroprocessor-based programmablecontrollers designed to control units such asRTUs, FCUs, UVs, HPUs, AHUs, and chilledceilings. This controller uses the BACnet® MS/TP LAN communication protocol and is BTL®-Listed as BACnet Application SpecificControllers (B‑ASC).

ApplicationsThese controllers meet the requirements of thefollowing applications:£ Rooftop Units£ Fan Coil Units£ Chilled Ceilings£ Heat Pumps£ Unit Ventilators£ Small Air Handling Units

Features & BenefitsFlexible Inputs and OutputsThis controller has various input types includingresistance, voltage, and digital-based ones.Moreover, it provides digital, floating, pulsewidth modulation, and proportional controloutputs for valves, heating elements, fans, andlighting applications. This controller covers allindustry-standard HVAC unitary applications.

Highly Accurate Universal InputsHighly accurate universal inputs supportthermistors and resistance temperaturedetectors (RTDs) that range from 0 Ohms to350,000 Ohms, as well as support for inputsrequiring 0 to 10VDC or 0 to 20mA with anexternal resistor. This provides the freedom ofusing your preferred or engineer-specifiedsensors, in addition to any existing ones.

Rugged Inputs/OutputsRugged hardware inputs and outputs eliminateneed for external protection components, suchas diodes for 12V DC relays.

D a t a s h e e t

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ProgrammabilitySupports Distech Controls’ EC-gfxProgram,which makes Building Automation System(BAS) programming effortless by allowing you tovisually assemble building blocks together tocreate a custom control sequence for anyHVAC / building automation application.

Increased Energy EfficiencyImproves energy efficiency when combinedwith:£ Motion detectors to automatically adjust a

zone’s occupancy mode from standby tooccupied when presence is detected

£ CO2 sensors as part of a demand-controlledventilation strategy that adjusts the amountof fresh air intake according to the numberof building occupants

£ Light switches to control both lighting and aroom’s HVAC occupancy / standby modesetting

Open-to-Wireless™ Solution

The controllers are Open-to-Wireless™ ready,and when paired with the Wireless Receiver,work with a variety of wireless battery-lesssensors and switches, to reduce the cost ofinstallation and minimize the impact on existingpartition walls. For supported frequencies inyour area, refer to the Open-to-WirelessSolution Guide.Available with an optional Wireless Receiverthat supports up to 24 wireless inputs to createwire-free installations.

Environmental ProtectionThe ECB-203 model with EnvironmentalProtection has a conformal coating applied to itscircuit board for an extra degree of protection foruse in humid regions and it is ideal for enclosedroof-top unit applications.

Allure™Series Communicating Sensor SupportThese controllers work with a wide range ofsensors, such as the Allure SeriesCommunicating Sensors that are designed toprovide intelligent sensing and control devicesfor increased user experience and energyefficiency.£ Allure EC-Smart-Vue sensors feature a

backlit-display and graphical menus thatprovide precise environmental zone control,with any combination of the following:temperature, humidity, CO2, and motionsensor.

£ Allure EC-Smart-Comfort sensors featurecolored LED indicators to provide userfeedback, rotary knobs to adjust the setpointoffset and fan speed, and an occupancyoverride push button. This sensor can alsobe expanded with a combination of up to 4add-on push button modules for lighting andshade/ sunblind control.

£ Allure EC-Smart-Air sensors combineprecise environmental sensing in a discreetand alluring enclosure for temperature,humidity, and CO2.

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Operator InterfaceThe ECB-253 model has a full-color backlit-display and a jog dial for turn and selectnavigation to access a wide range of internalcontroller functions:£ View and override values. The status is

color coded to show if the value isoverridden.

£ Visually tune PID loops with systemresponse graphing.

£ View and modify schedules and calendarsthrough a graphic interface. Also create ordelete schedule events, special events, andcalendar entries.

£ Create a list of favorites to provide quickaccess to commonly-used values.

£ Multi-User access management.£ Multilingual interface: English, French,

German, etc.

UUKL Smoke Control SystemThe Distech Controls UUKL Smoke ControlSystem is designed to protect occupants andbuildings in the event of a building fire bymaintaining tenable evacuation routes andcontaining smoke within the fire area. It is aunique NiagaraAX-based system that complieswith the Underwriters Laboratories Inc® (UL)requirements for UL 864 UUKL 9th EditionSmoke Control Listing.For detailed specifications, requirements, andprocedures for installing, wiring, and operatingUUKL Listed equipment, refer to the DistechControls UUKL Listed documentation onSmartSource: Smoke Control Design Guide(05DI-UGULDES-10) and the Smoke ControlApplication Guide (05DI-UGULAPP-10).

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Model Selection

Model ECB-203ECB-203 withEnvironmental

ProtectionECB-253 ECB-203 UUKL

Points 14-Point Controller 14-Point Controller 14-Point Controllerwith Color Display 14-Point Controller

Universal hardwareinputs 6 6 6 6

Wireless inputs1 24 24 24 2415 Vdc PowerSupplyDigital (triac)outputs 5 5 5 5

Universal outputs 3 3 3 3Operator interface:interactive colordisplay to monitorand overridecontrollerparametersEnvironmentalprotection(conformal coating)UL 864, 9th Edition,UUKL ListedSmoke ControlEquipment2

California StateFire Marshal Listed1. All controllers are Open-to-Wireless ready. Available when an optional Wireless Receiver is connected to the controller. Some wireless sensors may use more

than one wireless input from the controller.2. The UL 864 UUKL Listed Smoke Control Equipment is used only in Distech Controls’ UUKL smoke control system. For detailed specifications, requirements and

procedures for installing and operating UUKL Listed equipment refer to the Distech Controls’ UUKL Smoke Control documentation on SmartSource.

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Recommended ApplicationsModel ECB-203

ECB-203 withEnvironmental

ProtectionECB-253 ECB-203 UUKL

Rooftop Unit2 Pipe Fan Coil2 Pipe Fan Coil with ChangeoverSensor4 Pipe Fan CoilHeat Pump UnitUnit VentilatorSmall Air Handling UnitChilled CeilingExhaust Fan

BACnet Objects ListBACnet Objects ListBACnet Calendar Objects 1£ Special events per calendar 25BACnet Schedule Objects 2£ Special events per schedule 5BACnet PID Loop Objects 8BACnet BV Objects:£ Commandable 10£ Non-Commandable 40BACnet MSV Objects:£ Commandable 10£ Non-Commandable 40BACnet AV Objects:£ Commandable 25£ Non-Commandable 75

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Product SpecificationsPower Supply InputVoltage Range 24VAC/DC; ±15%; Class 2Frequency Range 50/60HzOvercurrent Protection Field replaceable fuseFuse Type 2.0APower Consumption:£ ECB-203 14 VA typical plus all external loads1, 23 VA max.£ ECB-253 17 VA typical plus all external loads1, 26 VA max.1. External loads must include the power consumption of any connected modules such as an Allure Series Communicating Sensor. Refer to the respective module’s

datasheet for related power consumption information.

CommunicationsCommunication Bus BACnet MS/TPBACnet Profile B-ASC1

EOL Resistor Built-in, jumper selectableBaud Rates 9600, 19 200, 38 400, or 76 800 bpsAddressing Dip switch or with an Allure EC-Smart-Vue Series Communicating Sensor1. Refer to Distech Controls’ Protocol Implementation Conformity Statement for BACnet.

HardwareProcessor STM32 (ARM Cortex™ M3) MCU, 32 bitCPU Speed 68 MHzMemory 384 kB Non-volatile Flash (applications)

1 MB Non-volatile Flash (storage) 64 kB RAM

Real Time Clock (RTC) Built-in Real Time Clock without battery Network time synchronization is required at each

power-up cycle before the RTC become availableStatus Indicator Green LEDs: power status & LAN Tx

Orange LEDs: controller status & LAN RxCommunication Jack BACnet 1/8" (3.5mm) stereo audio jack

SubnetworkCommunication RS-485Cable Cat 5e, 8 conductor twisted pairConnector RJ-45Connection Topology Daisy-chainMaximum Number of Allure Series Communicating Sensors combined 41

£ Allure EC-Smart-Vue Series Up to 4£ Allure EC-Smart-Comfort (except UUKL model) Up to 4£ Allure EC-Smart-Air Series (except UUKL model) Up to 41. A controller can support a maximum of two Allure Series Communicating Sensor models equipped with a CO2sensor. The remaining connected Allure Series

Communicating Sensor models must be without a CO2sensor.

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Wireless Receiver1

Communication Protocol EnOcean wireless standardNumber of Wireless Inputs2 24Supported Wireless Receivers Refer to the Open-to-Wireless Solution GuideCable Telephone cord£ Connector 4P4C modular jack£ Length (maximum) 6.5ft (2m)

1. Available when an optional external Wireless Receiver module is connected to the controller. Refer to the Open-to-Wireless Solution Guide for a list of supportedEnOcean wireless modules.

2. Some wireless modules may use more than one wireless input from the controller.

MechanicalDimensions (H × W × D):£ ECB-203 4.7 × 5.7 × 2.03" (119.38 × 144.78 × 51.47 mm)£ ECB-253 4.7 × 5.7 × 2.55" (119.38 × 144.78 × 64.68 mm)

6 4 .6 8 (2 .5 5 )

2 .2 5 " [5 7 .1 5 ]

4 .7 0 " [1 1 9 .3 8 ]

2 .0 3 " [5 1 .4 7 ] 2 .0 3 " [5 1 .4 7 ]4 .2 5 " [1 0 7 .9 5 ]

5 .7 0 " [1 4 4 .7 8 ]

C o n tro lle rs n o t e q u ip p e d w ith a n o p e ra to r in te rfa ce

C o n tro lle rs e q u ip p e d w ith a n o p e ra to r in te rfa ceIn ch e s [M illim e te rs ]

Shipping Weight:£ ECB-203 0.97lbs (0.44 kg)£ ECB-253 1.08lbs (0.49 kg)Enclosure Material1 FR/ABSEnclosure Rating Plastic housing, UL94-5VB flammability rating

Plenum rating per UL1995Color Black & blue casing & grey connectorsInstallation Direct DIN-rail mounting or wall mounting

through mounting holes (see figure above for hole positions)1. All materials and manufacturing processes comply with the RoHS directive and are marked according to the Waste Electrical and Electronic Equipment (WEEE)

directive

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EnvironmentalOperating Temperature:£ ECB-203 -40°F to 158°F (-40°C to 70°C)£ ECB-253 32°F to 122°F (0°C to 50°C)Storage Temperature -4°F to 122°F (-20°C to 50°C)Relative Humidity 0 to 90% Non-condensing

Standards and RegulationsCE:£ Emission EN61000-6-3: 2007; A1:2011; Generic standards for residential,

commercial and light-industrial environments£ Immunity EN61000-6-1: 2007; Generic standards for residential,

commercial and light-industrial environmentsFCC This device complies with FCC rules part 15, subpart B, class BUL Listed (CDN & US) UL916 Energy management equipmentUL 864 UL 864, 9th Edition, UUKL Listed Smoke Control Equipment

(ECB-203 UUKL model only)1

California State Fire Marshal Listing CSFM: 7300-2187:0100 (ECB-203 UUKL model only)1

CEC Appliance Database Appliance Efficiency Program2

1. For detailed specifications regarding the ECB-203 UUKLmodel, refer to the Distech Controls UUKL Smoke Control Design Guide.2. California Energy Commission’s Appliance Efficiency Program: The manufacturer has certified this product to the California Energy Commission in accordance

with California law.

             

ECB-253 DisplayDisplay Type Backlit-color LCDDisplay Resolution 400 W x 240 H pixels (WQVGA)Effective Viewing Area (W × H) 2.4 × 1.4” (61.2 × 36.7mm)

2.8” (71mm) diagonalMenu Navigation Jog dial turn, select navigation with Exit button

Specifications - Universal Inputs (UI)GeneralInput Type Universal; software configurableInput Resolution 16-bit analog / digital converterPower Supply Output 15VDC; maximum 120mA

ContactType Dry contact

CounterType Dry contactMaximum Frequency 1Hz maximum,Minimum Duty Cycle 500milliseconds On / 500milliseconds Off

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0 to 10VDCRange 0 to 10VDC (40kΩ input impedance)

0 to 5VDCRange 0 to 5VDC (high input impedance)

0 to 20mARange 0 to 20mA

249Ω external resistor wired in parallel

Resistance/ThermistorRange 0 to 350 KΩSupported Thermistor Types Any that operate in this rangePre-configured Temperature Sensor Types:£ Thermistor 10KΩ Type 2, 3 (10KΩ @ 77ºF; 25ºC)£ Platinum Pt1000 (1KΩ @ 32ºF; 0ºC)£ Nickel RTD Ni1000 (1KΩ @ 32ºF; 0ºC)

RTD Ni1000 (1KΩ @ 69.8ºF; 21ºC)

Specifications - Universal Outputs (UO)GeneralOutput Type Universal; software configurableOutput Resolution 10-bit digital to analog ConverterOutput Protection Built-in snubbing diode to protect against back-EMF,

for example when used with a 12VDC relay Output is internally protected against short circuits

Load Resistance Minimum 200 Ω for 0-10VDC and 0-12VDC outputs Maximum 500 Ω for 0-20mA output

Auto-reset fuse Provides 24VAC over voltage protection

0 or 12VDC (On/Off)Range 0 or 12VDCSource Current Maximum 60 mA at 12VDC (minimum load resistance 200Ω)

PWMRange Adjustable period from 2 to 65secondsThermal Actuator Management Adjustable warm up and cool down time

FloatingMinimum Pulse On/Off Time 500millisecondsDrive Time Period Adjustable

0 to 10VDCVoltage Range 0 to 10VDC linearSource Current Maximum 60 mA at 10VDC (minimum load resistance 200 Ω)

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Specifications - Digital Output (DO)GeneralOutput Type 24VAC Triac; software configurableMaximum Current per Output 0.5A continuous

1A @ 15% duty cycle for a 10-minute periodPower Source External

0 or 24VAC (On/Off)Range 0 or 24VAC

PWMRange Adjustable period from 2 to 65seconds

FloatingMinimum Pulse On/Off Time 500millisecondsDrive Time Period AdjustablePower Source External

Specifications subject to change without notice.Distech Controls, the Distech Controls logo, Innovative Solutions for Greener Buildings, Allure, ECO-Vue, and Open-To-Wireless are trademarks of Distech Controls

Inc.; LonWorks, LON, and LNS are registered trademarks of Echelon Corporation; BACnet is a registered trademark of ASHRAE; BTL is a registered trademark of theBACnet Manufacturers Association; NiagaraAX Framework is a registered trademark of Tridium, Inc.; EnOcean is a registered trademark of EnOcean GmbH.

All other trademarks are property of their respective owners. ©, Distech Controls Inc., 2015. All rights reserved.